10 Pairs of Aerie Underwear Only $25 (reg. $9.50 each)! July 4, 2018 by Coupon Caroline Leave a Comment This post may contain affiliate links or sponsored content. See Disclosure Policy. RUN to Aerie and score 10 pairs of underwear for just $25! Their clearance selection is on sale for $25 when you buy 10! This is a great time to stock up on some comfy undies.